Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Combination of cascade and pole changing Rheostat control Cascade control Pole changing Combination of cascade and pole changing Rheostat control Cascade control Pole changing ANSWER DOWNLOAD EXAMIANS APP
Electric Traction _________ locomotive has the highest operational availability. All of the listed here Electric Diesel Steam All of the listed here Electric Diesel Steam ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Which of the following is the disadvantage of electric traction over other systems of traction? Short time power failure interrupts traffic for hours Interference with communication lines High capital outlay in fixed installations beside route limitation Corrosion problems in the underground pipe work Short time power failure interrupts traffic for hours Interference with communication lines High capital outlay in fixed installations beside route limitation Corrosion problems in the underground pipe work ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Main traction systems used in India are, those using Diesel engine locomotives Steam engine locomotives All of the listed here Electric locomotives Diesel engine locomotives Steam engine locomotives All of the listed here Electric locomotives ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Coefficient of adhesion reduces due to the presence of which of the following? Both Dew on rails and Oil on the rails Oil on the rails Dew on rails Sand on rails Both Dew on rails and Oil on the rails Oil on the rails Dew on rails Sand on rails ANSWER DOWNLOAD EXAMIANS APP
Electric Traction Vacuum is created by which of the following? None of the listed here Ejector Vacuum pump Any of the listed here None of the listed here Ejector Vacuum pump Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
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